Ответ:Решение:\(\frac{13}{21} + \frac{3}{14} = \frac{26 + 9}{42} = \frac{35}{42} = \frac{5}{6}\)\(\frac{5}{6} : \frac{5}{27} = \frac{5}{6} \cdot \frac{27}{5} = \frac{27}{6} = \frac{9}{2}\)Ответ: \(\frac{9}{2}\).